1380103920 has 480 divisors, whose sum is σ = 5338324992. Its totient is φ = 329204736.

The previous prime is 1380103919. The next prime is 1380103957. The reversal of 1380103920 is 293010831.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 10866897 + ... + 10867023.

Almost surely, 2^1380103920 is an apocalyptic number.

1380103920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1380103920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2669162496).

1380103920 is an abundant number, since it is smaller than the sum of its proper divisors (3958221072).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1380103920 is a wasteful number, since it uses less digits than its factorization.

1380103920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211 (or 193 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 1380103920 is about 37149.7499318636. The cubic root of 1380103920 is about 1113.3642271737.

The spelling of 1380103920 in words is "one billion, three hundred eighty million, one hundred three thousand, nine hundred twenty".